fixing the comments.

No change in the functions and results.

opm/core/wells/WellCollection.cpp

@@ -275,19 +275,6 @@ namespace Opm
     }
 
 
-
-    size_t WellCollection::numNode() const
-    {
-        return leaf_nodes_.size();
-    }
-
-
-    WellNode* WellCollection::getNode(size_t i) const
-    {
-        assert( i< numNode());
-        return leaf_nodes_[i];
-    }
-
     void WellCollection::updateWellTargets(const std::vector<double>& well_rates)
     {
         if ( !needUpdateWellTargets() ) {
@@ -319,6 +306,7 @@ namespace Opm
         }
     }
 
+
     bool WellCollection::havingVREPGroups() const {
         return having_vrep_groups_;
     }